Fatigue Fracture of Clay Reinforced Nylon Nanocomposites

Author:

Kodama Yusuke1,Zhu Shi Jie2,Nakahara Yukiko3,Usuki Arimitsu4,Kato Makoto4

Affiliation:

1. Fukuoka Insitute of Technology

2. Fukuoka Institute of Technology

3. Junshin Gakuen University

4. Toyota Central R&D Labs., Inc.

Abstract

Nylon 6 clay hybrid (NCH) composite consists of nano-sized Montmorillonite and nylon 6 matrix. The testing materials were nylon 6, NCH-2 (2 wt% clay reinforced composite) and NCH-5 (5 wt% clay reinforced composite). Fatigue tests at the glass transition temperatures (35 °C and 50 °C) were performed with a stress ratio of 0.1 and frequency of 0.1Hz. NCH-2 had the highest fatigue strength at room temperature, but NCH-5 had the highest fatigue strengths at 35 °C and 50 °C. It was found that the fracture origin changed from surfaces to interior of specimens with an increase in temperature in NCH-2 and NCH-5.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference3 articles.

1. M. Kiyoshiba, Future Organic Material Function and Application for Automobile, Society of Automotive Engineers of Japan, Vol. 63, No. 4 (2009), pp.4-8.

2. M. Kato, Development of polymer clay nanocomposites by intercalation, Engineering Materials, Japan, Vol. 57, No. 4 (2009), pp.31-35.

3. S. Zhu, M. Okazaki, A. Usuki, M. Kato, Tensile and Fatigue Behavior in Clay Reinforced Nylon 6 Nanocomposites, Journal of the Society of Materials Science, Japan, Vol. 58, No. 12 (2009), pp.969-974.

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